56814749 has 2 divisors, whose sum is σ = 56814750. Its totient is φ = 56814748.

The previous prime is 56814713. The next prime is 56814763. The reversal of 56814749 is 94741865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53392249 + 3422500 = 7307^2 + 1850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56814749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56114749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28407374 + 28407375.

It is an arithmetic number, because the mean of its divisors is an integer number (28407375).

Almost surely, 2^56814749 is an apocalyptic number.

It is an amenable number.

56814749 is a deficient number, since it is larger than the sum of its proper divisors (1).

56814749 is an equidigital number, since it uses as much as digits as its factorization.

56814749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 56814749 is about 7537.5559036070. Note that the first 3 decimals coincide. The cubic root of 56814749 is about 384.4327374347.

The spelling of 56814749 in words is "fifty-six million, eight hundred fourteen thousand, seven hundred forty-nine".